Vertex colouring from last jPCT-AE version

[EgonOlsen]

You have to enable transparency on the Object3D and assign an alpha value that fits to the fourth component of your vertex color.

[mxar]

thanks

[mxar]

Hi again,

how can i apply vertex normals to  object3D when i call  this constructor ?

Object3D object3D = Object3D(float[] coordinates, float[] uvs, int[] indices, int textureId)

Also ,do you know if .3ds model can have embedded  textute images?

I mean if it is possible  the texture images  not be  separated from the .3ds file.

Thanks in advance.

[EgonOlsen]

You can't. That constructor doesn't support vertex normals. By default, jPCT calculates the vertex normals on its own. About the texture inside a 3ds file: No, not as far as i know.

[mxar]

OK, thanks.

[mxar]

Hi again,

there are cases vertex normal are pre-known. In such case, these normals describe the real-world object more accurately than the calculated ones.

Is there a way to give the jPCT-AE engine the known normal?

Can I use vertex or fragment shaders to use the pre-known vertex normals when building Object3D models with this constructor?


Object3D object3D = Object3D(float[] coordinates, float[] uvs, int[] indices, int textureId)

Thanks in advance

[EgonOlsen]

Try this version: http://jpct.de/download/beta/jpct_ae.jar

I've added a new constructor that takes an additional normals arrays of the same size as the coordinates array and applies it.

[mxar]

Many thanks,

this beta version is exactly the same with 1.29 version?

The addition of new Object3D constructor is the only difference with version 1.29?

Thanks in advance

[EgonOlsen]

Yes, more or less. It also includes a correction in the spelling of the createPyramid() method in ExtendedPrimitives, but other than that, it's the same thing.

[mxar]

Ok

thanks